I'm not sure if the link will work, but I have seen on here that people are interested in the triple-head-rest rear leather, and there is a set for-sale for a nugatory price on ebay.
I love 'Movvy' 1995 Jaguar XJ6 X300 3.2 (Henley) 1995 Jaguar XJ6 X330 4.0 (Dopey) 1957 Jaguar XK140 USA (converted to RHD, and to have fitted Mk10 420G Engine with BW 65 Auto Trans)